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Camera Obscura (Pinhole Camera)
https://ohio4h.org/camera-obscura
Using Your Camera Obscura NOTE: Our eyes need time to get used to the darkness of the camera obscura. ... a screen, such as the tracing paper. To understand how camera obscuras work, think about how our eyes work ... Because our simple cardboard tube device does not have the same ability to focus light that our eyes do, ...
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Small Moon, Big Sun 3
https://ohio4h.org/small-moon-big-sun-advanced
sun and Earth and the moon. When we look at an everyday item and hold it closer to our eyes, it will ... appear bigger compared to when the same item is held farther away from our eyes. The same phenomenon ...
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Small Moon, Big Sun 2
https://ohio4h.org/small-moon-big-sun-intermediate
closer to our eyes, it will appear bigger compared to when the same item is held farther away from our ...
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Solar Eclipse
https://ohio4h.org/solareclipse
work the same way as our eyes do? Find out! Time: 30 minutes Activities To Use During a Solar Eclipse The ...
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Ohio 4-H Livestock Judging
Join our Remind group for updates on practice contests, judging clinics, and more! Class code: @osulive ...
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Soil Testing
https://miami.osu.edu/program-areas/agriculture-and-natural-resources/soil-testing
The Miami County Extension office has soil testing kits available for $20. Please visit us Monday- ... calcium by the Mehlich 3 (ICP) test. The final report includes the chemical analysis of the soil along ... with lime and fertilizer recommendations for the crop specified. For agronomic crops, Mehlich 3 zinc, ...
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Update your preferences with Ohio State
https://ohio4h.org/january-2024/update-your-preferences-ohio-state
information, and changes can be made with the click of a button. In addition to managing your account details, ...
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Show your love for Ohio 4-H with a custom license plate
https://ohio4h.org/january-2024/show-your-love-ohio-4-h-custom-license-plate
support us in our mission of growing 4-H across Ohio to help youth build lifelong skills! Spread the word ...
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Foundation grants make camp possible
https://ohio4h.org/january-2024/foundation-grants-make-camp-possible
in April. A result of a unique partnership between Hocking College, Soil and Water Conservation, the ...
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Calendar of events
https://ohio4h.org/january-2024/calendar-events
4-H fellowship as we show our appreciation for our 4-H volunteers, donors, community leaders, ...